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68497227 = 3210771129
BaseRepresentation
bin1000001010100…
…10111101001011
311202220000112100
410011102331023
5120013402402
610444044443
71461134241
oct405227513
9152800470
1068497227
1135734a87
121ab33723
1311263806
149150791
15603071c
hex4152f4b

68497227 has 12 divisors (see below), whose sum is σ = 99866520. Its totient is φ = 45237408.

The previous prime is 68497201. The next prime is 68497241. The reversal of 68497227 is 72279486.

It is not a de Polignac number, because 68497227 - 28 = 68496971 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68497277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34602 + ... + 36527.

It is an arithmetic number, because the mean of its divisors is an integer number (8322210).

Almost surely, 268497227 is an apocalyptic number.

68497227 is a deficient number, since it is larger than the sum of its proper divisors (31369293).

68497227 is a wasteful number, since it uses less digits than its factorization.

68497227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71242 (or 71239 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 68497227 is about 8276.3051538715. The cubic root of 68497227 is about 409.1579525541.

The spelling of 68497227 in words is "sixty-eight million, four hundred ninety-seven thousand, two hundred twenty-seven".

Divisors: 1 3 9 107 321 963 71129 213387 640161 7610803 22832409 68497227